Maps API for Qt

I am trying to implement a basic maps based application in which the user will just click on a point and he will be directed to a new form based on his click. The problem is that i need a maps API for it that can be customized, so that i can add my own locations for the a smaller map region.

Which maps API will be suitable for this purpose. Also please post the link where i can download it and then implement it for my application